Bwa Index Download [top] -

While NCBI primarily hosts FASTA files, some ftp mirrors and cloud buckets (like those on AWS or Google Cloud) host pre-indexed versions of RefSeq assemblies.

Burrows-Wheeler Aligner (BWA) requires specific index files—usually ending in .amb, .ann, .bwt, .pac, and .sa—to map short sequencing reads against a long reference sequence. If you are working with human data, downloading pre-built indices is often more efficient than running the indexing command locally, especially on machines with limited RAM. Top Sources for BWA Index Downloads bwa index download

If you’d like to find the right files for your project, let me know: Which are you working with? Which genome build do you need (e.g., hg19, GRCh38)? Are you using BWA-backtrack or BWA-MEM ? While NCBI primarily hosts FASTA files, some ftp

I can provide the specific FTP links or terminal commands to grab the exact index you need. Top Sources for BWA Index Downloads If you’d